C8051F521A-IM Silicon Laboratories Inc, C8051F521A-IM Datasheet - Page 166

• Manufacturer Part Number: C8051F521A-IM
• Description: IC 8051 MCU 8K FLASH 10DFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F52xr

Specifications of C8051F521A-IM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 10-DFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 6
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.25 V
• Data Converters: A/D 6x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Processor Series: C8051F5x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI/UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 3
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F500DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 6-ch x 12-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1488 - KIT DEV C8051F53XA, C8051F52XA770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1455 - ADAPTER PROGRAM TOOLSTICK F520
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1490-5

C8051F52x/F52xA/F53x/F53xA
The following code programs the interface in Master mode, using the Enhanced Checksum and enables
the interface to operate at 19200 bits/sec using a 24 MHz system clock.
Table 17.2 includes the configuration values required for the typical system clocks and baud rates:
166
LINDATA = 0x0C;// Reset any error and the interrupt
SYSCLK
22.1184
11.0592
(MHz)
LIN0CF
LIN0CF
LINADDR
// Initialize the register (prescaler, multiplier and bit 8 of divider)
LINDATA
LINADDR
LINDATA
LINADDR
LINDATA
LINADDR
12.25
24.5
25
24
16
12
8
|= 0x80;// Initialize the checksum as Enhanced
0
0
0
0
0
0
0
0
0
|= 0x40;// Set the node as a Master
= 0x0D;// Point to the LIN0MUL register
= ( 0x01 << 6 ) + ( 0x00 << 1 ) + ( ( 0x13F & 0x0100 ) >> 8 );
= 0x0C;// Point to the LIN0DIV register
= (unsigned char)_0x13F;// Initialize LIN0DIV
= 0x0B;// Point to the LIN0SIZE register
= 0x08;// Point to LIN0CTRL register
= 0x80;// Activate the interface
20 K
1
1
1
1
1
0
0
0
0
Table 17.2. Manual Baud Rate Parameters Examples
312
306
300
276
200
306
300
276
200
0
0
0
0
0
0
0
0
0
19.2 K
1
1
1
1
1
0
0
0
0
325
319
312
288
208
319
312
288
208
Rev. 1.3
Baud (bits / sec)
1
1
1
1
1
1
1
1
1
9.6 K
1
1
1
1
1
0
0
0
0
325
319
312
288
208
319
312
288
208
3
3
3
3
3
3
3
3
3
4.8 K
1
1
1
1
1
0
0
0
0
325
319
312
288
208
319
312
288
208
19
19
19
19
19
19
19
19
19
1 K
1
1
1
1
1
0
0
0
0
312
306
300
276
200
306
300
276
200